Yeas, a US backed Fatah coup. It's all on wikipedia:

US post-election impediments

Just before the January 2006 elections, and after witnessing Hamas' gains in municipal polls, the House of Representatives passed H.Res. 575 (December 16, 2005), asserting that terrorist groups, like Hamas, should not be permitted to participate in Palestinian elections until such organizations "recognize Israel's right to exist as a Jewish state, cease incitement, condemn terrorism, and permanently disarm and dismantle their terrorist infrastructure."[63] The Palestinian Authority chose to ignore this external decision: "the Palestinian Authority (PA) president Mahmoud Abbas has favored an unconditional acceptance of Hamas's electoral participation, believing that it could co-opt Hamas within the Palestinian political fold".[64]

The New York Times reported in February 2006 that "The United States and Israel are discussing ways to destabilize the Palestinian government so that newly elected Hamas officials will fail and elections will be called again. The intention is to starve the Palestinian Authority of money and international connections to the point where, some months from now, its president, Mahmoud Abbas, is compelled to call a new election."[65]

Just how much further matters would be taken was revealed in April 2008. Tom Segev (in Ha'aretz) reported:

a "confidential document, a 'talking points' memo,[66] was left by the U.S. consul general in Jerusalem, Jake Walles, on the desk of Mahmoud Abbas . … According to the paper left behind … he wanted to pressure Abu Mazen to take action that would annul the outcome of the elections that had catapulted Hamas to power. … When nothing happened, Walles … warned the Palestinian president that the time had come to act. Instead, Abu Mazen launched negotiations with Hamas on the establishment of a unity government. … At this point the Americans moved to "Plan B." That was a plan to eliminate Hamas by force. In fact, it was to be a deliberately fomented civil war Fatah was supposed to win, with U.S. help."[67]

In April 2008 Vanity Fair published "The Gaza Bombshell":

There is no one more hated among Hamas members than Muhammad Dahlan, long Fatah's resident strongman in Gaza. Dahlan, who most recently served as Abbas's national-security adviser, has spent more than a decade battling Hamas. ... Bush has met Dahlan on at least three occasions. After talks at the White House in July 2003, Bush publicly praised Dahlan as "a good, solid leader." In private, say multiple Israeli and American officials, the U.S. president described him as "our guy."

Vanity Fair has obtained confidential documents, since corroborated by sources in the U.S. and Palestine, which lay bare a covert initiative, approved by Bush and implemented by Secretary of State Condoleezza Rice and Deputy National Security Adviser Elliott Abrams, to provoke a Palestinian civil war. The plan was for forces led by Dahlan, and armed with new weapons supplied at America's behest, to give Fatah the muscle it needed to remove the democratically elected Hamas-led government from power. (The State Department declined to comment.)

Some sources call the scheme "Iran-contra 2.0," recalling that Abrams was convicted (and later pardoned) for withholding information from Congress during the original Iran-contra scandal under President Reagan. There are echoes of other past misadventures as well: the C.I.A.'s 1953 ouster of an elected prime minister in Iran, which set the stage for the 1979 Islamic revolution there; the aborted 1961 Bay of Pigs invasion, which gave Fidel Castro an excuse to solidify his hold on Cuba; and the contemporary tragedy in Iraq.[68]

The Jerusalem Post confirmed that the documents cited by Vanity Fair "have been corroborated by sources at the US State Department and Palestinian officials", and added:

The report said that instead of driving its enemies out of power, the US-backed Fatah fighters inadvertently provoked Hamas to seize total control of the Gaza Strip in June 2007. David Wurmser, who resigned as Vice President Dick Cheney's chief Middle East adviser a month after the Hamas takeover, said he believed that Hamas had no intention of taking over the Gaza Strip until Fatah forced its hand. "It looks to me that what happened wasn't so much a coup by Hamas but an attempted coup by Fatah that was preempted before it could happen," he was quoted as saying. Wurmser said that the Bush administration engaged in a "dirty war in an effort to provide a corrupt dictatorship [led by Palestinian Authority President Mahmoud Abbas] with victory." Wurmser said he was especially galled by the Bush administration's hypocrisy. "There is a stunning disconnect between the president's call for Middle East democracy and this policy," he said. "It directly contradicts it.".[69]

The original article was cited by the Irish Times, the Israeli historian and political analyst, Tom Segev, in an article entitled "Bay of Pigs in Gaza", and also by Suzanne Goldenburg of The Guardian, who added "A state department memo put the cost for salaries, training and weapons at $1.27bn (£640m) over five years."[59]

The 2008 exposé by Vanity Fair (of plans to reverse the democratic 2006 PA parliamentary elections) confirmed a CF Report of January 2007, over a year earlier, by Alistair Crooke:

Deputy National Security Advisor, Elliott Abrams ... has had it about for some months now that the U.S. is not only not interested in dealing with Hamas, it is working to ensure its failure. In the immediate aftermath of the Hamas elections, last January, Abrams greeted a group of Palestinian businessmen in his White House office with talk of a "hard coup" against the newly-elected Hamas government — the violent overthrow of their leadership with arms supplied by the United States. While the businessmen were shocked, Abrams was adamant — the U.S. had to support Fatah with guns, ammunition and training, so that they could fight Hamas for control of the Palestinian government.

Over the last twelve months, the United States has supplied guns, ammunition and training to Palestinian Fatah activists to take on Hamas in the streets of Gaza and the West Bank. A large number of Fatah activists have been trained and "graduated" from two camps — one in Ramallah and one in Jericho. The supplies of rifles and ammunition, which started as a mere trickle, has now become a torrent (Haaretz reports the U.S. has designated an astounding $86.4 million for Abu Mazen's security detail), and while the program has gone largely without notice in the American press, it is openly talked about and commented on in the Arab media.

Of course, in public, Secretary Rice appears contrite and concerned with "the growing lawlessness" among Palestinians, while failing to mention that such lawlessness is exactly what the Abrams plan was designed to create."[70]

Voice of America reported that the Bush administration had denied the Vanity Fair report.[71]

In 2016 a 2006 audio tape emerged that contains an interview by Eli Chomsky of the Jewish Press with Hillary Clinton. Clinton opined that pushing for elections "in the Palestinian territories ... was a big mistake", adding "(a)nd if we were going to push for an election, then we should have made sure that we did something to determine who was going to win."[72]

https://en.wikipedia.org/wiki/2006_Palestinian_legislative_e...